Cooling device

ABSTRACT

A cooling device for cooling an electronic component is disclosed. The cooling device comprises a cooler comprising a base, a plurality of first fins and a plurality of second fins. The plurality of first fins extends substantially perpendicular from the base, and the plurality of second fins are secured to the base. Each of the plurality of second fins is between adjacent two of the plurality of first fins. Each of the plurality of second fins comprises a plurality of body portions and a plurality of connecting pieces. Each of the plurality of connecting pieces connects adjacent two of the plurality of body portions.

BACKGROUND

1. Technical Field

The present disclosure relates to a cooling device.

2. Description of Related Art

A cooling device is usually used for cooling an electronic component,such as a CPU. Referring to FIG. 1, a conventional cooling devicegenerally comprises a cooler 80 and a fan 90. The cooler 80 maycomprises a base 81 and a plurality of fins 83 located on a top surfaceof the base 81. The plurality of fins 83 may be substantiallyperpendicular to the base 81. An air channel 85 may be defined by eachtwo adjacent fins 83. A bottom surface of the base 81 may abut againstan electronic component 71 secured to a circuit board 70. The base 81may transfer heat generated by the electronic component to the pluralityof fins 83. The fan 90 may be secured to a side of the cooler 80. Thefan 90 guides air to flow via the air channel 85 and cools the pluralityof fins 83. However, the cooling surface area of the fins 30 may besmall, resulting a low cooling efficiency. Therefore, an improvedcooling device may be desire.

BRIEF DESCRIPTION OF THE DRAWINGS

Many aspects of the embodiments can be better understood with referenceto the following drawings. The components in the drawings are notnecessarily drawn to scale, the emphasis instead being placed uponclearly illustrating the principles of the embodiments. Moreover, in thedrawings, like reference numerals designate corresponding partsthroughout the several views.

FIG. 1 is an exploded, isometric view of a cooling device of a priorart.

FIG. 2 is an exploded, isometric view of one embodiment of a coolingdevice of the present disclosure.

FIG. 3 is an enlarged view of the portion III of FIG. 2.

FIG. 4 is an isometric assembled view of the cooling device of FIG. 2.

DETAILED DESCRIPTION

The disclosure is illustrated by way of example and not by way oflimitation in the figures of the accompanying drawings in which likereferences indicate similar elements. It should be noted that referencesto “an” or “one” embodiment in this disclosure are not necessarily tothe same embodiment, and such references mean at least one.

Referring to FIGS. 2-4, a cooling device in accordance with anembodiment comprises a cooler 10 and a fan 30.

The cooler 10 may be used to cool an electronic component 60. Theelectronic component 60 is secured to a circuit board 50. The cooler 10comprises a base 11, a plurality of first fins 13, and a plurality ofsecond fins 15. The plurality of first fins 13 extend from a top surfaceof the base 11, and are substantially perpendicular to the top surfaceor a bottom surface of the base 11. The top surface is substantiallyparallel to the bottom surface. Each of the plurality of second fins 15comprises a plurality of body portions 150, and a plurality ofconnecting pieces 155. Each of the plurality of body portions 150comprises a first piece 151 and two second pieces 153. The first pieces151 are substantially parallel to each other. The two second pieces 153are substantially parallel to each other and perpendicular to the firstpieces 151. Each of the plurality of connecting pieces 155 is connectedto adjacent two of the two adjacent second pieces 153. In oneembodiment, each of the plurality of connecting pieces 155 issubstantially parallel to the first pieces 151, and a distance betweenthe two second pieces 153 of one of the plurality of body portions 150is substantially equal to a distance between adjacent two of the twosecond pieces 153 of adjacent two of the plurality of body portions 150.An air channel 156 is defined by each adjacent two of the two secondpieces 153.

In assembly, each of the plurality of second fins 15 is secured to eachadjacent two of the plurality of first fins 13. One of the two secondpiece 153 abuts against the top surface of the base 11. The two secondpieces 153 are substantially parallel to the base 11. An extendingdirection of the air channel 156 is substantially perpendicular to theplurality of first fins 13. In one embodiment, each of the first piece151 and each of the plurality of connecting pieces 155 abut against eachof the plurality of first fins 13. The fan 30 is secured to the cooler10 on one side of the air channel 156. The cooler 10 is secured to thecircuit board 50, and a bottom surface of the base 11 abuts against theelectronic component 60.

In use, heat generated from the electronic component 60 is transferredto the plurality of first fins 13 and the plurality of second fins 15through the base 11. The fan 30 guides air flow to flow via the airchannel 156 to cool the cooler 10.

In the above described cooling device, the plurality second fins 15increase cooling surface area of the cooling device, so the heat can bedissipated quickly. Thus, the cooling efficiency is improved.

It is to be understood, however, that even though numerouscharacteristics and advantages have been set forth in the foregoingdescription of embodiments, together with details of the structures andfunctions of the embodiments, the disclosure is illustrative only andchanges may be made in detail, especially in the matters of shape, size,and the arrangement of parts within the principles of the disclosure, tothe full extent indicated by the broad general meaning of the terms inwhich the appended claims are expressed.

1. A cooling device comprising: a cooler comprising a base, a pluralityof first fins and a plurality of second fins; wherein the plurality offirst fins extends substantially perpendicular from the base, and theplurality of second fins are secured to the base; and each of theplurality of second fins is between adjacent two of the plurality offirst fins; each of the plurality of second fins comprises a pluralityof body portions and a plurality of connecting pieces, each of theplurality of connecting pieces connects adjacent two of the plurality ofbody portions.
 2. The cooling device of claim 1, wherein each of theplurality of body portions comprises two second pieces, and a firstpiece connected to each of the two second pieces, and each of theplurality of connecting pieces connects adjacent two of the two secondpieces of adjacent two of the plurality of body portions.
 3. The coolingdevice of claim 2, wherein the first piece is substantiallyperpendicular to each of the two second pieces, and parallel to each ofthe plurality of plurality of connecting pieces.
 4. The cooling deviceof claim 2, wherein one of the two second pieces abuts against the base,and is substantially parallel to the base.
 5. The cooling device ofclaim 2, wherein the two second pieces define an air channel for airflow flowing through, and the air channel has an extending directionsubstantially perpendicular to each of the plurality of first fins. 6.The cooling device of claim 2, wherein a distance between the two secondpieces of each of the plurality of body portions is substantially equalto a distance between the adjacent two of the two second pieces ofadjacent two of the plurality of body portions.
 7. The cooling device ofclaim 2, wherein each of the first piece and each of the plurality ofconnecting pieces abut against adjacent two of the plurality of firstfins.
 8. The cooling device of claim 1, wherein the plurality of firstfins are integrated with the base.
 9. A cooling device comprising: afan; and a cooler comprising a base, a plurality of first fins and aplurality of second fins; wherein the plurality of first fins extendssubstantially perpendicular from the base; the plurality of second finsare secured to the base; each of the plurality of second fins is betweenadjacent two of the plurality of first fins; each of the plurality ofsecond fins comprises a plurality of body portions and a plurality ofconnecting pieces, each of the plurality of connecting pieces connectsadjacent two of the plurality of body portions; each of the plurality ofbody portions comprises two second pieces, and a first piece connectedto each of the two second pieces, the two second pieces defines an airchannel; the fan is secured to a side of the air channel, and the fanguides air flow to flow through the air channel.
 10. The cooling deviceof claim 9, wherein each of the plurality of connecting pieces connectsadjacent two of the two second pieces of adjacent two of the pluralityof body portions.
 11. The cooling device of claim 9, wherein the firstpiece is substantially perpendicular to each of the two second pieces,and substantially parallel to each of the plurality of connectingpieces.
 12. The cooling device of claim 9, wherein one of the two secondpieces abuts against the base, and is substantially parallel to thebase.
 13. The cooling device of claim 9, wherein the air channel has anextending direction substantially perpendicular to each of the pluralityof first fins.
 14. The cooling device of claim 9, wherein a distancebetween the two second pieces of each of the plurality of body portionsis substantially equal to a distance between the adjacent two of the twosecond pieces of adjacent two of the plurality of body portions.
 15. Thecooling device of claim 9, wherein each of the first piece and each ofthe plurality of connecting pieces abut against adjacent two of theplurality of first fins.
 16. The cooling device of claim 9, wherein theplurality of first fins are integrated with the base.